Charge and Current More Practice Charge and Current
- Slides: 22
Charge and Current: More Practice
Charge and Current: More Practice
Charge and Current: More Practice
Charge and Current: More Practice
A Review of Circuits: Student Learning Goal The student will be able to construct and then compare and contrast the behaviour and functions of series and parallel DC circuits
Circuits A circuit consists of at least one power source (such as a battery) and one load (such as a light bulb). The two need to be connected in a complete, closed loop.
Circuit Symbols We can represent circuits with schematic diagrams using the following symbols:
Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell
Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells
Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells Connecting wire
Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells Connecting wire Load/resistor
Circuit Symbols We can represent circuits with schematic diagrams using the following symbols: Single power cell Multiple cells Connecting wire Load/resistor Open switch Closed switch
Circuit Symbols We can represent circuits with schematic diagrams:
Circuit Symbols We can represent circuits with schematic diagrams:
Ammeters To measure the current (I) in an electrical circuit, an ammeter may be placed in the circuit: ammeter load cell
Voltmeters The voltage across any part of a circuit may be measured by placing a voltmeter across it:
Power The power (in Watts) delivered to a circuit or consumed by a load is:
Power: Example A 9 -V battery is connected to a load that draws 2 A. What is the power consumed by the load?
Power: Example A 9 -V battery is connected to a load that draws 2 A. What is the power consumed by the load?
Power: Example A 9 -V battery is connected to a load that draws 2 A. What is the power consumed by the load?
Power: Example A 9 -V battery is connected to a load that draws 2 A. What is the power consumed by the load?
A Caution Remember never to make a circuit connecting one terminal of the battery to the other without something to consume the power (such as a light bulb) in between. This would be a short circuit.
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